What are the spark plug models for the Spirior?

[LaEverly]

The spark plug model for the Spirior is NGK LZKR6B-10E. The spark plug is a crucial component in the ignition system of a gasoline engine. It introduces high voltage into the combustion chamber and generates a spark by jumping across the electrode gap, thereby igniting the combustible air-fuel mixture in the cylinder. Under high voltage, the air between the center electrode and the side electrode of the spark plug rapidly ionizes, forming positively charged ions and negatively charged free electrons. When the voltage between the electrodes reaches a certain level, the number of ions and electrons in the gas increases like an avalanche, causing the air to lose its insulating properties. This creates a discharge channel between the gap, resulting in a "breakdown" phenomenon. At this point, the gas forms a luminous body, known as a "spark." Along with thermal expansion, a "crackling" sound is also produced. The temperature of this electric spark can reach as high as 2000-3000°C, which is sufficient to ignite the air-fuel mixture in the cylinder's combustion chamber.

[JulianAnn]

I've been driving a Honda Spirior for many years and know the spark plug model is quite crucial. The common engine for the Spirior is the 2.4L K24 series, and the OEM-recommended models are mostly NGK IFR6A11 or Denso IK22, depending on your car's year. My 2014 model uses the NGK one, which provides stable ignition, and I noticed slightly better fuel efficiency after replacement. Spark plugs come in materials like iridium and platinum, with the Spirior typically using iridium ones that last 60,000-80,000 km. Don’t cheap out on no-name brands—I once tried an aftermarket set, and the car shook badly, almost leaving me stranded. During regular maintenance, check the electrode gap to ensure smooth ignition, as it affects engine performance and driving safety. When replacing, always refer to the owner’s manual or visit a dealership for the exact match to avoid misfires. Worn-out spark plugs accumulate carbon deposits, which can hurt acceleration.

[LaGarrett]

I always repair my Honda Spirior by myself, and changing spark plugs isn't difficult. I've researched the models. Common ones include NGK IFR6A11, BKR6EIX-11, or Denso IK20, depending on the engine version. My suggestion is to first check the VIN label on the door frame, search online for matching parts, or consult the manual. For example, the 2.4L engine uses iridium models for faster ignition. When replacing, remove the engine cover, use a special tool to unscrew the old plugs, and when installing new ones, don't apply too much torque—just tighten them properly. I prefer high-performance spark plugs, like iridium ones, which are better than standard ones and can improve engine response. Wrong spark plugs can trigger the check engine light; once I installed the wrong ones, causing a misfire and terrible shaking. Regularly check the resistance value to avoid short circuits or leakage affecting emissions. Worn-out spark plugs increase fuel consumption, so I replace them every 50,000 km to ensure stable and healthy car performance.

[Sullivan]

I've been driving the Spirior for ten years, and the spark plug models are etched in my memory. The early 2009 model might have used NGK BPR6EFS, while later models like the 2015 version switched to Denso ITV22 or NGK IFR6A11. Using the wrong model can cause severe engine knocking—I once tried a no-name brand, and the engine sounded off while guzzling fuel. Worn spark plugs are prone to carbon buildup and stalling; I recommend checking the electrode wear every 30,000 km. Material affects lifespan—iridium plugs last longer. Matching the correct spark plug model is crucial; check the VIN or manual for accuracy. Don’t neglect regular maintenance—faulty spark plugs can be dangerous at high speeds, a lesson I learned the hard way. Ensure proper voltage for smooth ignition.